[AccessD] Is There a Limit to the length of a path and file name

Rocky Smolin - Beach Access Software bchacc at san.rr.com
Wed Feb 26 16:47:01 CST 2003


Marty:

Thanks.  Will forward.

Rocky

----- Original Message -----
From: "MartyConnelly" <martyconnelly at shaw.ca>
To: <accessd at databaseadvisors.com>
Sent: Wednesday, February 26, 2003 12:12 PM
Subject: Re: [AccessD] Is There a Limit to the length of a path and file
name


> 256 character limit
>
> drive letter + ':' + path and filename + 'null' character  = 255
characters.
>
> There are some weird Unicode hacks ( by creating files with prefixes)
> that can create filenames up to 32k  long. Some of these were invisible
> to Virus Scanners at one time.
> Use the "\\?\" prefix with paths for local  storage devices and
>  the "\\?\UNC\" prefix with paths having the
> Universal  Naming Convention (UNC) format.
> The "\\?\" is ignored as part of the path.
>   For example, "\\?\C:\MyDocs\secret" is seen as "C:\MyDocs\secret",
> and   "\\?\UNC\marty\secret\myapps" is seen as
>   "\\UNC\marty\secret\myapps?"
>
>
> Rocky Smolin - Beach Access Software wrote:
>
> >
> > Dear List:
> >
> >
> > Does anyone know is there a limit to the length of a path and file
> > name for a linked table.  A client of mine 'seems' to have reached
> > that limit.  A linked table could be opened by a form, but could not
> > be opened from the database window.  Shortening the path and file name
> > seems to have solved the problem.
> >
> > TIA
> >
> > Rocky Smolin
> > Beach Access Software
> >
> >
> >
>
>
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